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EP2816871A1 - Échangeur thermique et dispositif de chauffage - Google Patents

Échangeur thermique et dispositif de chauffage Download PDF

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Publication number
EP2816871A1
EP2816871A1 EP14172836.0A EP14172836A EP2816871A1 EP 2816871 A1 EP2816871 A1 EP 2816871A1 EP 14172836 A EP14172836 A EP 14172836A EP 2816871 A1 EP2816871 A1 EP 2816871A1
Authority
EP
European Patent Office
Prior art keywords
surface heating
heating element
fluid
heat exchanger
fluid channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14172836.0A
Other languages
German (de)
English (en)
Other versions
EP2816871B1 (fr
Inventor
Wolfgang Seewald
Karl-Gerd Krumbach
Michael Kohl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP2816871A1 publication Critical patent/EP2816871A1/fr
Application granted granted Critical
Publication of EP2816871B1 publication Critical patent/EP2816871B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
    • H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0015—Guiding means in water channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818—Arrangement or mounting of electric heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H2250/00—Electrical heat generating means
    • F24H2250/08—Induction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F28F1/422—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element with outside means integral with the tubular element and inside means integral with the tubular element
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
    • H05B2206/02—Induction heating
    • H05B2206/024—Induction heating the resistive heat generated in the induction coil is conducted to the load

Definitions

  • the invention relates to a heat transfer device for a heating device according to the preamble of claim 1 and a heating device, in particular for a motor vehicle.
  • Heating devices are known in the art. Thus, there are air-side heating devices that have so-called PTC heating elements, which are electrically energized and thereby heat. Via air-side fins, which are in contact with the PTC elements, the heat is transferred to the air flowing through.
  • PTC heating elements which are electrically energized and thereby heat.
  • Via air-side fins which are in contact with the PTC elements, the heat is transferred to the air flowing through.
  • these heaters have a fundamentally different structure than necessary for liquid media.
  • Liquid media heaters are provided with a closed housing formed with a fluid channel having a fluid inlet and a fluid outlet, wherein a heater protrudes into the housing and is heated by a PTC element.
  • a heating device which comprises a housing with a fluid channel disposed therein with a fluid inlet and a fluid outlet, wherein in the housing an alternating magnetic field generating element is provided which seals at least one wall of the fluid channel is divided, wherein at least one metallic surface heating element is provided, which is heatable by the alternating magnetic field, wherein the at least one surface heating element is arranged in the fluid channel.
  • the heat transfer device for a heating device in particular of a motor vehicle, has a housing with at least one fluid channel arranged therein with a fluid inlet and a fluid outlet, an element producing a magnetic alternating field and at least one surface heating element which can be flowed around by a fluid on one or both sides, wherein a further surface heating element is provided, which is arranged to divide the at least one fluid channel into sub-channels.
  • the at least one and the further surface element are heated by the magnetic alternating field and can deliver their heat to the at least one and the further surface heating element flowing around the fluid.
  • the alternating magnetic field generating element is preferably arranged sealed by a wall of the fluid and thus arranged outside the fluid channel and the fluid flow through the fluid channel.
  • the at least one and the further surface heating element are in one of Fluid channels arranged, wherein an electrical separation of the electrical system (alternating magnetic field generating element, surface heating element) is achieved.
  • the additional surface heating element can, in addition to the at least one surface heating element, receive a heating power component of the alternating magnetic field.
  • the at least one surface heating element is preferably a first surface heating element arranged within the element generating the alternating magnetic field.
  • the magnetic alternating field generating element is preferably an induction coil.
  • a second, outside of the magnetic alternating field generating element arranged surface heating element is provided.
  • the further surface heating element is preferably arranged directly adjacent to the second surface heating element. It is particularly preferably arranged outside the second surface heating element.
  • four fluid channels for the fluid can be realized.
  • the second and the further surface heating elements preferably have a contact, whereby the heating power density per surface heating element can be divided and thereby reduced.
  • the heating power density of the second surface heating element can be optimized.
  • the further surface element preferably has transverse mixing elements. This results in a cross-mixing of the fluid in the two sub-channels flows, in particular in the fourth fluid channel allows.
  • a cylindrically structured heat exchanger device a cylindrical first surface heating element is arranged, viewed from the central axis. This is surrounded by the cylindrical induction coil.
  • the second surface heating element is arranged cylindrically around the induction coil. Seen radially outwardly, the cylindrically structured third surface heating element adjoins.
  • Cross-mixing is particularly advantageous, since the fluid is often distributed unevenly on entering the fourth fluid channel.
  • the cross-mixing elements can realize flow paths between the two sub-channels of the fourth fluid channel.
  • the cross-mixing elements have openings, by means of which the fluid can flow through the further third surface heating element.
  • the fluid can pass from the fluid channel, in particular one of the subchannels, which is arranged on one side of the further surface heating element into the subchannel arranged on the other side.
  • the openings are preferably formed by the further surface heating element having straight sections and sections with bulges.
  • the rectilinear portions and the portions with bulges and openings are arranged alternately, so that distributed over the length of the surface heating element arranged connecting channels or flow paths for passage for the fluid from one to the other part of the channel.
  • the cross-connection elements can also be formed by slots or generally introduced recesses in the rectilinear portions of the third surface heating element.
  • the further surface heating element has a geometric configuration, by means of which a spacing of two adjacently arranged surface heating elements can be realized.
  • the surface heating element can also be a spacing of the Surface heating element to realize an inner wall of the housing.
  • the geometric configuration preferably comprises bulges, corrugations, more generally elements that project beyond the surface, in particular the surface of the straight section of the surface heating element, but are designed in one piece with it.
  • two functions in particular a passage of the fluid from one sub-channel into another sub-channel and a spacer between the further surface-heating element and the adjacently arranged second surface-heating element can be realized with the one further surface-heating element.
  • the geometric configuration of the further surface heating element has a geometric structure which is set up and configured to realize a turbulation and swirling of the fluid flowing through the subchannels.
  • This can be achieved in particular by the geometric arrangement of the transverse mixing elements, in particular the bulges and openings over the surface of the surface heating element.
  • the respective geometric shape of the bulge can be designed variable.
  • the bulges are arranged "on gap", whereby seen in the flow direction rectilinear portions and portions with bulges are arranged alternately.
  • the further surface heating element divides the at least one fluid channel into subchannels such that the lowest possible pressure drop and a maximum possible heat dissipation to the coolant in the fluid channel are realized.
  • the maximum possible heat dissipation can be increased by the design of the further surface heating element, by the surface, which can be used for heat transfer, is increased.
  • the further surface heating element preferably has indentations and / or ribbing. As a result, a pressure drop on the fluid side can preferably be selectively introduced.
  • the surface heating elements are made of a material having a higher electrical resistivity than the material of the alternating magnetic field generating element (induction coil), in particular, the surface heating elements on a ferrous material.
  • induction coil in this case has a very good conductive copper, in particular an HF copper (high-frequency copper).
  • the iron-containing material of the further surface heating element is a ferritic material.
  • the first surface heating element is preferably formed from a ferritic material
  • the second surface heating element is preferably formed from an austenitic material
  • the third surface heating element is preferably formed from a ferritic material.
  • the second surface heating element is penetrated by the alternating magnetic field and the third surface heating element can "capture” the "remaining” magnetic field and converted into heat energy by induced eddy currents.
  • an optimized distribution of Schutulasanteüe on arranged inside and outside the induction coil surface heating done.
  • the further surface heating element can be configured such that the further surface heating element can be installed in a planar and / or cylindrical housing.
  • the surface heating elements can thus be designed cylindrical or present as planar elements and be arranged vertically or horizontally.
  • the further third area heating element can in this case the bulges and openings and / or slots and corrugations and / or Indentations and ribs in vertical or horizontal sections have.
  • two surface heating elements adjacent to one another are connected to one another in a form-fitting and / or material-locking manner. This is particularly advantageous, as this assembly can be simplified.
  • a support of the outer surface heating element can be avoided on the housing, whereby the risk of entanglement between the professionnheizelement and the housing is avoided during assembly.
  • the surface heating elements in the region of the spacer elements which are formed for example by pronounced knob-like projections, connected to each other.
  • the heating device with a heat transfer device has a control unit for controlling the alternating magnetic field generating element and the mecanicncopy shame, wherein the heat transfer device comprises a housing having at least one fluid channel disposed therein with a fluid inlet and a fluid outlet and a magnetic alternating field generating element and at least one of a fluid on one side or on both sides flow around, preferably metallicêtnheizelement, wherein a further felicitnheizelement is provided, which is adapted to divide the at least one fluid channel into sub-channels.
  • Fig. 1 a shows a first embodiment of a heating device 10 according to the invention with a heat transfer device 12 with a fluid inlet 14 and a fluid outlet 16 and a control device 18 in a perspective view from a viewing direction from the side.
  • the fluid inlet 14 and the fluid outlet 16 are at a connection flange 22 arranged.
  • the controller 18 includes an HV (high voltage) plug 20 and an NV (low voltage) plug 21.
  • Fig. 1b shows the heater 10 of Fig. 1a in a rotated by 90 ° representation with the same components.
  • Fig. 2 shows the heater 10 in an exploded view. Identical parts are provided with the same reference numerals.
  • the heat transfer device 12 has the fluid inlet 14 and the fluid outlet 16, which are arranged on and at least partially in the connection flange 22.
  • the connection flange 22 is also referred to as coolant connection cover 22.
  • a fluid inlet or a fluid outlet 14, 16 may be provided on the connection flange 22 or coolant connection cover 22, which may be designed as a connecting piece.
  • a single flange may be provided on one of the openings in the connection flange 22 or a common flange on the two openings in the connection flange.
  • External fluid connection lines can be connected via the connecting pieces or the flanges. Both the connecting pieces and the flanges can be made in one piece with the connecting flange 22.
  • the actual heat exchanger device Arranged on and at least in sections in the connection flange 22 is the actual heat exchanger device with a first, inner surface heating element 24.
  • the first surface heating element 24 is preferably designed as a stainless steel pipe.
  • a second surface heating element 26 and a third surface heating element 28 are arranged around the first surface heating element 24, a second surface heating element 26 and a third surface heating element 28 are arranged.
  • the third surface heating element is shown as a smooth sheet metal, but preferably the third surface heating element 28 has slots and / or bulges and / or corrugations and / or openings.
  • FIG Fig. 6 A more detailed illustration of the third surface heating element 28 is shown in FIG Fig. 6 shown.
  • the surface heating elements 24, 26 and 28 are accommodated in a housing 30.
  • the housing 30 is preferably an aluminum housing, preferably an extruded aluminum cylinder.
  • the housing 30 is preferably a cylindrical housing 30.
  • a magnetic alternating field generating element 32 is further arranged.
  • the magnetic alternating field generating element 32 is preferably an induction coil 32, more preferably a hollow cylindrical induction coil 32.
  • the induction coil 32 may also be designed as a planar induction coil 32, in particular if it is used in a flat heat transfer device.
  • the magnetic alternating field generating element 32 is accommodated in an element housing 34, preferably a coil housing 34.
  • the control device 18 Adjacent to the housing 30, the control device 18 is arranged, which has a high voltage power electronics 38 accommodated in an electronics housing 36.
  • the electronics housing 36 is preferably made of aluminum.
  • the electronics housing 36 is laterally connected to the housing 30 and arranged on or on a connection plate 40.
  • the housings 30 and 36 are preferably mechanically connected, so that the heating device 10 can be installed as a device, for example in a motor vehicle.
  • the surface heating elements 24, 26 and 28 are preferably formed as hollow cylindrical or planar elements and of a metal. Preferably, the surface heating elements 24, 26, 28 as thin sheets with a wall thickness which is approximately in a range between 0.08 mm and 0.5 mm.
  • the first surface heating element 24 is preferably made of a ferritic material and can absorb approximately between 20% and 40% of the heating power from the alternating magnetic field.
  • the second surface heating element 26 is preferably made of an austenitic material and can absorb about 50% to 70% of the heating power.
  • the third surface heating element 28 is preferably made made of a ferritic material and can absorb about 5% to 15% of the heating power.
  • the penetration depth of the magnetic field and thereby the area in which eddy currents flow is described by the skin effect. If the penetration depth is greater than the material thickness of the surface heating element, a plurality of individual thin surface heating elements can also be "switched" one behind the other. This is e.g. given at the second surface heating element 26 with austenitic material. Due to the small thickness of the surface heating elements, it is possible that the penetration of more than one clergynheizelement is given. Thus, the series connection of the second and the third legislativenfilterettis 26 and 28 is possible.
  • Fig. 3 shows the heater 10 in sectional view.
  • the heating device 10 is also referred to as induction heater 10.
  • flow paths for a fluid flowing through the heat exchanger device 12 are shown.
  • the fluid passes through the fluid or coolant inlet 14, in particular its inlet flange 22 into the interior of the heat transfer device 12.
  • the flow direction of the fluid is denoted by an arrow 44 and is referred to as the inlet flow direction 44.
  • the fluid flows through a first fluid channel 46 formed by the first surface heating element 24.
  • the rectilinear flow direction 46 is deflected and forms a deflection flow, which is designated by an arrow 50.
  • the fluid may be substantially parallel, but in the opposite direction, represented by an arrow 52, along the outer wall of the first Surface heating element 24 flow along until the fluid has reached the other end 54 of the first surface heating element 24.
  • the end 54 is connected to the connection flange 42 such that no fluid can reenter the interior of the first surface heating element 24.
  • the second fluid channel 52 is closed as seen in the flow direction 52.
  • a passage 58 is formed, through which the fluid is deflected into a flow path 60 shown by the arrow 60 and enters the third fluid channel 62.
  • the third fluid channel 62 is formed on one side by the sealed (electrically and mechanically) induction coil body 34 and on the other side by the second surface heating element 26.
  • the fluid is again deflected, represented by the arrow 64, into a fourth fluid channel 66, wherein the direction of flow of the fluid in the direction of the adjacent to the fluid inlet 14 fluid outlet 16, which in Fig. 3 not shown, shows.
  • Fig. 4a shows the heat transfer device 12 with the housing 30, the coil housing 34, the firstmonynheizelement 24, the secondmonynheizelement 26 and the thirdmonynheizelement 28 and thedeffenab gleichdeckel 22.
  • the induction coil 32 itself can also be seen.
  • Fig. 4b shows the heat exchanger device 12 with the same components, wherein an internal mandrel 68 can be seen by the deviating sectional plane.
  • Fig. 4c also shows the heat transfer device 12 with the housing 30, the coil housing 34 and the induction coil 32, the inner mandrel 68, which is arranged centrally to the induction coil 42.
  • the surface heating elements 24, 26 and 28 are also arranged rotationally symmetrical about the inner mandrel 68.
  • the first surface heating element 24 is disposed within the coil 32
  • the second surface heating element 26 is arranged outside of the induction coil 32
  • the third surface heating element 28 is arranged in the fourth fluid channel 66 and divides the fluid channel 66 into a first sub-channel 70a and a second sub-channel 70b. This division of the fluid channels 46, 52, 66, 70a, 70b is more apparent in FIG Fig. 5 recognizable.
  • Fig. 5a and 5b show the heat exchanger device 12 also in sectional view.
  • the fluid inlet 14 is arranged in the coolant connection cover 22 next to the fluid outlet 16, so that the fluid can flow centrally into the first fluid channel 46 and can flow out of the heat transfer device 12 through the fluid outlet 16 arranged adjacent to the inlet flange 14 in the connection flange 22.
  • connection flange 22 of the heat transfer device 12 in Fig. 5a and 5b is from the in Fig. 1 different embodiment shown.
  • the connecting flange 22 of Fig. 1 has juxtaposed fluid inlet and fluid outlets 14 and 16.
  • two realized embodiments for the fluid inlet 14 and the fluid outlet 16, in particular two embodiments for the connection flange 22, are shown.
  • Fig. 6a, 6b and 6c show the third surface heating element 28, which is formed as a hollow cylindrical body with a cylinder jacket 72.
  • the third area heating element 28 has openings 74 arranged on the cylinder jacket 72, which openings can be formed as slots.
  • the openings 74 can also be realized by bilateral bulges 76 are formed on the cylinder jacket 72.
  • the bulges 76 are formed by extending over the circumference of the cylinder jacket 72 extending cylinder jacket portions 78 which form a cylinder jacket strip 78.
  • the cylinder jacket strip 78 is alternately on the inner side of the cylinder jacket 72 and on the outer Side of the cylinder jacket 72 everted or bulged.
  • a fluid channel or flow path 80 is formed between a rectilinear cylindrical sleeve portion 82 and the everted or bulged sleeve barrel portion 78.
  • the cylinder jacket bands 78 and 82 are, for example, about 0.1 mm to 10 mm high. Depending on the desired degree of mixing of the fluid and the number of cylinder jacket bands 78 and the height of the cylinder jacket 72, the height of the cylinder jacket bands 78 can be varied.
  • cylinder jacket bands 78 extend on both sides of the cylinder jacket 72.
  • the dimensions of the bulges 76 of the cylindrical cylinder jacket 72 may comprise circumferentially different circular arc segments of the cylinder jacket circumference.
  • different sized flow paths 80 can be formed.
  • the openings 74 may also be formed by slots or other shaped openings. Wherein Berippungen or corrugations take over the bulges in the function of a spacer to the second surface heating element 26.
  • the openings can also be simple Ausstanzlöcher.
  • the design of the mecanicnfilettis 28 may also be present as a planar element, wherein the portions with bulges do not extend beyond the cylinder jacket 72 but form flat bands, which are arranged alternately with rectilinear sections or bands.
  • the Fig. 7 shows an alternative embodiment of the heat transfer device 90, wherein the third foundednheizelement 91 is designed as a cylindrical hollow body.
  • the surface heating element 91 has distributed in the circumferential direction and in the axial direction a plurality of openings 92, which have been produced for example by a stamping process.
  • the openings 92 are in Fig. 7 circular in shape and in a uniform Patterns arranged in horizontal and vertical rows.
  • the openings 92 serve as so-called cross-mixing elements, which allow a mixing of the fluid between the two sub-channels, which are formed radially inside and outside of the third surface heating element 91.
  • openings may also be provided for the openings, such as rectangular, square or elliptical cross-sections.
  • the arrangement of the openings on the surface heating element can be varied.
  • the openings may be randomly distributed.
  • a coolant connection cap 102 is arranged, which has a fluid inlet 93 and a fluid outlet 94.
  • the fluid inlet 93 is formed separately from the fluid outlet 94, wherein both the fluid inlet 93 and the fluid outlet are formed as cylindrical nozzles.
  • the fluid inlet 93 and the fluid outlet 94 are respectively in fluid communication with fluid channels in the interior of the heat transfer device 90.
  • Fig. 8 shows a sectional view through the heat exchanger device 90 from Fig. 7 ,
  • the outer surface heating element 91 is shown cut, whereby the view of the central surface heating element 95 is released.
  • the second surface heating element 95 has at its lower end portion a plurality of openings 96, 97, wherein both slot-like openings 96 and circular openings 97 are formed.
  • the openings 96, 97 are arranged in the circumferential direction along the lower end region of the second surface heating element 95. In the embodiment of Fig. 8 the openings 96, 97 are distributed in a horizontal row along the circumference.
  • the openings 96, 97 Through the openings 96, 97, a fluid transfer between a radially outside of the second surface heating element 95 arranged Fluid channel and a flow region which is disposed within the second surface heating element 95, are made possible.
  • the corresponding internally disposed flow region is preferably in fluid communication with the fluid outlet 94.
  • the flow region disposed within is preferably formed by an annular groove arranged in the coolant connection cap 102.
  • the second surface heating element 95 on its outwardly directed surface 98 knob-like projections 99, which serve as a spacer element to the third surface heating element 91.
  • the knob-like projections 99 are formed, for example, by an embossing process from the inner surface into the second surface heating element 95.
  • the knob-like projections 99 have a conical shape, which runs on the outer surface 98 of the second surface heating element 95 and tapers.
  • the tips of the knob-like elements 99 abut against the inwardly facing surface of the third surface heating element 91, thereby realizing a spacing between the second surface heating element 95 and the third surface heating element 91.
  • the third surface heating element 91 is connected at the tips of the knob-like projections 99 with the second surface heating element 95. This can be achieved for example by a Verkörnung, by a spot weld or by other fixation.
  • a plurality of knob-like projections 99 are arranged on the second surface heating element 95.
  • Vent holes 100 at the lower end portion above the openings 96, 97 form a transition for air, which can form or collect at the lower end portion of lying within the second surface heating element 95 fluid channel in particular at the deflection of the bobbin.
  • the vent holes 100 Through the vent holes 100, the air can flow outwardly into the fluid channel formed between the second surface heating element 95 and the third surface heating element 91 and flow out of there through the fluid outlet 94 from the heat exchanger device 90.
  • the heat transfer device 90 is oriented such that the fluid inlet 93, the fluid outlet 94 and the vent holes 100 are oriented upwards.
  • the heat exchanger device 90 in comparison to the preferred mounting position on the head. This also applies to the heat exchanger device 12 of the previous FIGS. 3 to 5 ,
  • Fig. 9 shows a further sectional view of the heat transfer device 90, wherein the second surface heating element 95 and the first surface heating element 101 are also shown in section.
  • the inner mandrel 106 is shown with a significantly shorter extent in the axial direction than in the previous Fig. 4 and 5 ,
  • the coolant connection cap 102 forms a base-like region, which has three sections of different diameter. The diameters decrease from the fluid ports 93, 94 upwards. At the largest diameter portion 103, the hollow cylindrical housing of the heat transfer device 90 abuts with an inner surface. At the overlying portion 104, the second surface heating element 95 abuts with an inner surface. At the third overlying section 105, the first surface heating element 101 abuts with an inner surface. Thus, in addition to the fluid connections 93, 94, the coolant connection cap 102 also forms the lower boundary of the surface heating elements 101, 95 and 91, respectively trained fluid channels. The coolant connection cap 102 is plugged into the hollow-cylindrical surface heating elements 95 and 101 and the housing of the heat transfer device 90 from below, similar to a stopper.
  • the second portion 103 has a circumferential annular groove 105 which is in fluid communication with the fluid outlet 94 via an axial bore 106.
  • the coolant connection cap 102 also has a bore 107, which is in fluid communication with the fluid inlet 93 and completely penetrates the coolant connection cap 102 from below upwards and opens into the fluid channel formed inside the first surface heating element 101.
  • Fig. 10 2 shows a flow-through image of the heat transfer device 90, wherein a fluid flows through the fluid inlet 93 into the first fluid channel 108, which is formed in the interior of the first surface heating element 101, and flows upwards along the directional arrow 109. At the upper end region, the fluid is deflected along the directional arrow 110 through a gap between the first surface heating element 101 and the upper lid by approximately 180 degrees. The fluid flows in the second fluid channel 111, which is formed between the first surface heating element 101 and the bobbin, down.
  • the fourth fluid channel 116 is divided into two subchannels, wherein a subchannel is formed between the third areal heating element 91 and the second areal heating element 95, and a subchannel is formed between the third areal heating element 91 and the outer housing. The two sub-channels communicate with each other via the openings 92 in fluid communication.
  • the fluid is deflected along the directional arrow 117 by approximately 90 degrees and flows through the openings 96, 97 which are arranged in the second surface heating element 95, into the annular groove 105 from where the fluid flows out of the fluid outlet 94 along the directional arrow 118.
  • the Fig. 11 shows a perspective view of the heat transfer device 90 of Fig. 10 , In Fig. 11 is particularly well represented the area in which the fluid flows from the annular groove 105 into the bore 106.
  • the second surface heating element 95 is shown shortened for this purpose to release the view of the annular groove 105.
  • the surface heating elements 91, 95 and 101 are preferably pressed with the sections 103, 104 and 105 of the coolant connection cover 102.
  • An advantageous connection is a conical-press connection, which is produced by utilizing the casting bevels produced during the production process of the coolant connection ceiling 102.
  • the sections 103, 104 and 105 can also advantageously be designed in such a way that they taper conically, viewed from bottom to top, which facilitates pressing on the surface heating elements 91, 95 and 101.
  • the surface heating elements may be connected to the respective sections of the coolant connection cover by Verkörnmaschine, folded tabs or other fixing aids.
  • Fig. 12 shows a detailed view of the lower end portion of the heat transfer device 90 according to the Fig. 9 ,
  • the gap 121 formed between the coolant connection cap 102 and the housing 120, in which the bobbin is enclosed, can be seen, through which the fluid can flow between the fluid channels 111 and 113.
  • spacer elements 122 are arranged, which the housing 120 relative to Coolant connection cover 102 space.
  • the spacers 122 have upwardly directed U-shaped receiving areas, in which the housing 120 is inserted.
  • the spacer elements may also have fastening devices which generate a fixation between the coolant connection cover and the housing.
  • the fastening devices can be formed for example by snap hooks, latching elements or clamping elements.
  • vent holes 100 are shown in the middle surface heating element 95, which serve in particular the venting of the heat exchanger device 90.
  • Air can flow from the fluid channel 113 into the fluid channel 116 through the ventilation holes 100.
  • the fluid channels 113, 116 are arranged radially outside and radially inside the central surface heating element 95. From the radially outer fluid channel 116, the air can finally through the openings 96, 97, which in Fig. 12 are not shown, overflow into the annular groove 105 in the coolant connection cap 102 and from there through the fluid outlet 94 from the heat exchanger device 90 also. This is possible in particular when the heat transfer device 90 is mounted in its preferred installation position, the coolant connection cover 102 being arranged in this preferred installation position at the upper end region of the heat transfer device 90.
  • the Fig. 13 shows a further detail view according to Fig. 12 wherein the surface heating element 95 is not shown cut.
  • the openings 96, 97 and the ventilation bores 100 can be seen, which are arranged at the lower end region of the surface heating element 95.
  • the surface heating element 95 completely encloses the section 104 of the coolant connection cover 102 and rests on the lower section 103.
  • Fig. 14 shows an alternative embodiment of the heat transfer device 90, wherein the outer surface heating element according to the surface heating element 28 of the Fig. 6a is executed.
  • the Fig. 14 thus, in particular shows a combination of the surface heating element 28, as in the Fig. 4a, 4b, 4c . 5a, 5b . 6a, 6b and 6c and a heat transfer device 90, which has a coolant connection cap 102 with fluid ports 93 and 94 separated from each other, and into which Fig. 7 to 11 is shown.
  • the portion 104 of the coolant connection cap 102 is enclosed by a ring-like element 123, which is connected via fastening means 124 to the coolant connection cap 102.
  • the ring-like element 123 has openings facing away from the observer, through which the fluid can flow into a flow region formed in the section 104, which can be designed, for example, as an annular groove.
  • Fig. 1 to 14 are exemplary and serve to clarify the inventive concept.
  • the individual features of the different embodiments can be combined with each other.
  • the choice of material and the geometry of the individual elements and the arrangement of the elements to each other have the Fig. 1 to 14 no limiting character.
  • heat exchangers heat exchangers, heat exchanger device, heat exchanger device and heat exchanger are used synonymously.
  • fluid channel or flow channel and partial flow channel or partial channel and flow path or flow path are used synonymously.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • General Induction Heating (AREA)
EP14172836.0A 2013-06-19 2014-06-17 Échangeur thermique et dispositif de chauffage Active EP2816871B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013211579.2A DE102013211579A1 (de) 2013-06-19 2013-06-19 Wärmetauschereinrichtung und Heizvorrichtung

Publications (2)

Publication Number Publication Date
EP2816871A1 true EP2816871A1 (fr) 2014-12-24
EP2816871B1 EP2816871B1 (fr) 2021-03-31

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US (1) US9743464B2 (fr)
EP (1) EP2816871B1 (fr)
CN (1) CN204190964U (fr)
DE (1) DE102013211579A1 (fr)

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WO2022122723A1 (fr) * 2020-12-11 2022-06-16 Dbk David + Baader Gmbh Dispositif de régulation de température

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DE102013211581A1 (de) * 2013-06-19 2014-12-24 Behr Gmbh & Co. Kg Heizvorrichtung
FR3009610B1 (fr) * 2013-08-09 2018-11-23 Winslim Chauffe-eau
NO337089B1 (no) * 2014-03-13 2016-01-18 Defa As Oppvarmingsanordning for fluid
KR102415658B1 (ko) * 2017-08-09 2022-07-05 현대자동차주식회사 전기차량의 냉각수 가열장치
KR101954531B1 (ko) * 2017-09-26 2019-05-23 엘지전자 주식회사 정수기 및 정수기의 제어 방법
KR102218463B1 (ko) * 2019-08-26 2021-02-22 유장석 순간온수공급장치
DE102020123066A1 (de) * 2019-11-18 2021-05-20 Borgwarner Ludwigsburg Gmbh Durchlauferhitzer
KR20240022514A (ko) * 2021-06-16 2024-02-20 와틀로 일렉트릭 매뉴팩츄어링 컴파니 전기 히터 시스템
KR20240105947A (ko) * 2022-12-29 2024-07-08 인지컨트롤스 주식회사 차량용 냉각수 가열 장치
CN119012435B (zh) * 2024-09-26 2025-09-05 辽宁克乐星科技有限公司 一种锁交磁通加热器及加热方法

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Also Published As

Publication number Publication date
CN204190964U (zh) 2015-03-04
EP2816871B1 (fr) 2021-03-31
US9743464B2 (en) 2017-08-22
US20140374408A1 (en) 2014-12-25
DE102013211579A1 (de) 2014-12-24

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